Home > 2008 ICD-9-CM Diagnosis Codes > Diseases Of The Digestive System 520-579 > Diseases Of Oral Cavity, Salivary Glands, And Jaws 520-529 > Gingival and periodontal diseases 523-
Specific code 2008 ICD-9-CM Diagnosis Code 523.40
Chronic periodontitis, unspecified
  • Short description: CHRONC PERIODONTITIS NOS.
  • ICD-9-CM 523.40 is a billable medical code that can be used to indicate a diagnosis on a reimbursement claim, however, 523.40 should only be used for claims with a date of service on or before September 30, 2015. For claims with a date of service on or after October 1, 2015, use an equivalent ICD-10-CM code (or codes).
  • You are viewing the 2008 version of ICD-9-CM 523.40.
  • More recent version(s) of ICD-9-CM 523.40: 2009 2010 2011 2012 2013 2014 2015.
Convert to ICD-10-CM: 523.40 converts directly to:
  • 2015/16 ICD-10-CM K05.30 Chronic periodontitis, unspecified
Approximate Synonyms
  • Chronic periodontitis
ICD-9-CM Volume 2 Index entries containing back-references to 523.40:
  • Blennorrhea (acute) 098.0
    • alveolaris 523.40
  • Cementoperiostitis 523.40
  • Disease, diseased - see also Syndrome
    • Fauchard's (periodontitis) 523.40
    • Riggs' (compound periodontitis) 523.40
  • Fauchard's disease (periodontitis) 523.40
  • Gingivitis 523.10
    • expulsiva 523.40
  • Gingivopericementitis 523.40
  • Operculitis (chronic) 523.40
  • Parodontitis 523.40
  • Pericementitis 523.40
    • chronic (suppurative) 523.40
  • Pericoronitis (chronic) 523.40
  • Periodontitis (chronic) (complex) (compound) (simplex) 523.40
  • Pyorrhea (alveolar) (alveolaris) 523.40
  • Riggs' disease (compound periodontitis) 523.40
 523.4 ICD9Data.com 523.41 
ICD-9-CM codes are used in medical billing and coding to describe diseases, injuries, symptoms and conditions. ICD-9-CM 523.40 is one of thousands of ICD-9-CM codes used in healthcare. Although ICD-9-CM and CPT codes are largely numeric, they differ in that CPT codes describe medical procedures and services. Can't find a code? Start at the root of ICD-9-CM, check the 2008 ICD-9-CM Index or use the search engine at the top of this page to lookup any code.
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